Nolan Marc Dick Daniel

We swapped the ALS PFD with a unit that had its LO TNC/PCB/SMA/SMA/coax/SMA input arrangement replaced by a simple TNC/coax/SMA. Furthermore, the TNC connectors are no longer isolated. This should reduce any crosstalk inside the PFD between the 2 ALS VCOs.

While we were at the rack we noticed that some of the N bulkheads in the VCOs and FDDs were very loose. One of them rattled when we wiggled the cable. We tightened them all. We noticed that one of the cables between the VCO and the FDD had 2 ~5dB attenuator installed, whereas the other one had none. This was fixed as well. Both FDDs now have a proper 13dBm at the input.